Originally Posted by thrgk;12766373
what is a good voltage for 6950s flashed at that speed, usually default is 1.175, should up it to 1.2?

I would raise it by 0.01V until it's stable.

Quote:

Originally Posted by AMD/ATI
I want to ask, should i keep these clock speed that i have now, or can i increase it a little more ?

I usually pick a resonable voltage to start with, say +0.1V above stock. In the 6950's case, that's 1.2V. Leave memory at stock 1250MHz. Start raising the core speed by 10MHz until it crashes. Back down 10-20MHz and that's your stable clock.

Now that you've found your stable core speed, it's time to bring up the mem speed. Start raising mem speed by 20MHz until it artifacts or crashes. Back down 20-40MHz and that's your stable memory speed.

My usual stability test it to run the Crysis: Warhead benchmark 99 times on max settings. If it completes, I consider it stable for 24/7 gaming. I've ran furmark for 24H and had Crysis crash within 5M so that's why I prefer to use Crysis for stability testing.

If you want to tweak more...
Now that you've found your max stable overclock of 920/1380, it's time to find the lowest voltage for that clock speed. We already know it's stable at 1.2V. From here I usually lower voltage 0.01V until it's unstable and then raise it 0.01V.